TaxNo: 6688Genus gen.nov.II aff.Karagand.
| Suborder: |
Tornoceratina
|
| Superfamily: |
Karagandoceratoidea
|
| Family: |
Karagandoceratidae
|
| Genus: | gen.nov.II aff.Karagand. |
| Qualifier: | sy |
| Author: |
Bartzsch & Weyer 1988,p.135
|
| Valid: |
Masonoceras Work & Manger (TAX6684) |
| Lower Boundary: |
S.isosticha,upper S.crenulata Z. base [0, 355 million years
|
| Upper Boundary: |
KAK Kassini top, 353 million years
|